The Do Not Forward Query Variables option allows you to control exactly which URL parameters are passed from Sentry into your survey or termination links.

When this option is enabled, Sentry will stop automatically forwarding all query string variables included on the Sentry entry link. Instead, only variables that you explicitly include using the ${variable} syntax will be forwarded.

What This Setting Does

When Do Not Forward Query Variables is enabled:

• URL variables passed into Sentry are not automatically forwarded to your survey
• You must manually specify which variables should be passed
• Only variables explicitly included using ${variable} will appear in the final survey or termination URL

This setting is most commonly used when you want strict control over which parameters reach your survey.

How Variable Forwarding Works with This Setting Enabled

Example Entry Link

A respondent enters Sentry using the following URL: 

https://sentry.cloudresearch.com/entry/proect_id?var1=value1&var2=value2

Both var1 and var2 are provided by the supplier.

Survey Link Inside Sentry

If your survey link inside Sentry is configured as:

https://example.com/survey?var1=${var1}

Final Redirect Result

When the respondent exits Sentry, they will be redirected to:

https://example.com?var1=value1

In this example:

• var1 is forwarded because it was explicitly included using ${var1}
• var2 is not forwarded because it was not included in the survey link 

Important Rules to Know

• Variable names inside ${ } must exactly match the incoming parameter name
• Variable names are case-sensitive
• Variables not explicitly included using ${variable} will not be forwarded
• This behavior applies to both survey links and termination redirect links

Key Takeaways

• Enabling Do Not Forward Query Variables disables automatic parameter forwarding
• Only variables explicitly included using ${variable} will be passed through
• This setting provides precise control over which URL parameters reach your survey
• Best suited for survey platforms that require respondents enter on a specific URL format